Washing apparatus for fibrous materials



mmzw

Nov. 6 1923.

R. W. COOK Filed Oct. 17 1921 INVENTQR ll!!l 25 WITNESS .n lioberi W 0005/,- 5 MGM/Will, n a at; I I

i y-27 BY 1 I $4 1 ATTORNEY Patented Nov. 6, i223.

I warren stars ROBERT W. COOK, OF ROCHESTER, NEW YORK/ASSIGNOR TO EASTMAN KODAK COM- PANY, OF ROCHESTER, NEW YORK, A CORPORATION OF YORK.

WASHING APPARATUS FOR FIBROUS MATERIALS.

Application filed October 17, 1921. Serial No. 508,376.

To all whom it may concern:

Be it known that 1, ROBERT W. COOK, a citizen of the United States of America, residing at Rochester, in the county of Monroe and State of New York, have invented certain new and useful Improvements in Washing Apparatus for Fibrous Materials, of which the following is a full, clear, and exact specification.

This application relates to an improved washing apparatus for fibrous material. The objects of this inventionare to provide a device of this type which is simple in operation and construction, in which material.

of the nature described may be quickly and throughly Washed, and from which such material may be removed by a single operation, the entire contents being discharged at one time without leaving small portions of the material that must be carefully picked out. These objects are attained by the use of a container with foraminous sides and bottom through which the material will not pass and which slope to a large outlet, which when opened is entirely unobstructed, water reaching the material only through these walls. The force of the water coming through the walls will carry the material with it through the outlet.

The above and other ends are attained by the structure, one embodiment of which is fully described hereinafter and the novel features of which are recited in the appended claims.

Reference will now be made to the accompanying drawing in which:

Fig. 1 is a perspective view of my improved tank;

Fig. 2 is a front elevation thereof, and

Fig. 3 is a perspective view of the foraminous container alone.

The apparatus consists of a tank 1, hav ing side walls 2, 3, 4-, and 5, and a bottom wall 6. Within the tank is a container 40 comprising three walls 7, 8, and '9, the upper edges of which are attached to the walls 3, i, and 5 respectively. These three walls incline to form an inverted pyramid. The front edges 10 and 11 of the walls 7 and 9 respectively form tight joints with the inside of the front wall 2 of the outer tank, meeting at the apex or point 12 at the bottom of the tank and the front thereof. The meeting edge 13 between walls 7 and 8 inclines to the same point as does the. meeting are formed of foraminuous material and preferably are of wood with a large number of small holes bored therethrough. In the drawing, for the sake of clearness, these holes appear rather large and further'spaced apart than in practice, but I find it preferable to make a large number of very small holes. A suitable washing liquid such as water is admitted through the pipe 15 by means of a stopcock 16 to the interior of the tank at a point in the lower portion thereof outside of the container 40.

In the front wall 2 is a large aperture 18 opening into the inner container 40, the portions of the opening below the edges 10 and 11 being closed by suitable'stop-blocks 19 so that water or other material will escape only from the container 40. A bar 20 is hinged at 21 to the front 2 of the tank and this bar carries a hand screw 22, which in turn carries a closure 23 for the opening 18. The other end of the bar 20 is supported in lowered position by a bracket 24:.

container 40. A further Outlet pipe 27 pro-' vided with a stopcock 28 is also provided, this; opemng from the bottom of the outer ta In use the fibrous material such as raw cotton, wood pulp, nitratedcotton and the 7 like is placed in the container and water admitted from pipe 15. As the tank fills the water will enter the container 40 through the foraminous walls and overflow through the pipes 26, which are provided with suitable strainers 26' to prevent fibrous material passing therethrough. If desired, the water may be withdrawn entirely from time to time from the tank and container by means of the stopcock 28. When the charge 'of fibrous material is to be removed from the tank, the stopcock 16 is left open so that there will be a pressure of water upwardly through the foraminous walls of the container. The screw 22 is loosened and bar 20 are dischargedin a mass} Becauseof the. inward rush of "the Water into the v container i through all of the apertures of its Wall, the

fibrous Inaterialdoes not become entangled in the openingsin these Wall's, but the water forces them'fwith itout of the main discharge'opening. It is obviousthat the water cannot reach this dischargeopening'except through the fo'rarninous. walls aso that there is a considerable volume of water operative to carry. the charge; of the; apparatus out with it.flltis obvious, therefore, that the washing tank canbe emptied-withthegreato est ease andthat there will not be; as is often the case with other tanksdesigned for similar purposes, the-necessity for picking out remaining fragments and fibers that have attached themselves to the walls of the apprising a tankwith side and bottom walls, a

container in'theta'nk having at its'bottom a large; outlet through a wall'of the 'tank, and

having a foraminQus wall sloping to said outlet, a-closure for the outlet, and means for admitting liquid-to the tank outside o :and beneath the top ofthe container.

2.- Apparatus of the typedescribed com l prising a'tank, a container within the'tank havlng a foraminous wall and havlng a ;large outlet through the'tanlz, a closure for said outletso movable as toleavethe outlet entirely o unimpeded, the wall sloping to the outlet, and means or admitting. liquid to the tank ou'tside ot' and below the top of the container.; 1 e I 3. Apparatus of the type described comprising a tank, a container'within the tank having ioraminous walls and havinga large 1 outlet through the tank, meansfor admitting liquid to theftank outside of said cone tainer and below the top thereof, whereby liquid admitted through said means may reach said outlet only through the foraminous walls. I the, type described com- 4. Apparatus of prising a tank with side and bottom walls, a container withinthe tank, having foraminous Walls joined to the side walls of the tank and having a large outlet through a" Wall of thetank, the walls of the container sloping to said outlet, means for admitting liquid to the tank outside of said container and below thetop thereof, whereby liquid admitted through said means may reach said outlet only through the foraminous walls, and a closure for said outlet adapted to be moved so as to leave the closure entirely unimpeded.

Signed atR0cheSter,.. New York, this 10th day of October 192%.

BERT w coo 

